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2 years ago

8y +12 - y =61

Mathematics

1 answer:

Dovator [93]2 years ago

7 0

8y + 12 - y = 61
8y - y + 12 = 61
7y + 12 = 61
7y = 61 - 12
7y = 49
7y/7 = 49/7
y = 7

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Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

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